Vapor-heater for engines



v. ADAMS;

VAPOR HEATER FOR ENGINES.

APPLICATION FILED APR-6.1920.

1,356,482, Patented Oct. 19, 1920.

I NVENTOR ATTORNEI UNITEDsSTAT ES PATENT OFFICE. i

' VICTOR ADAMS, OF LEXINGTON.KE1\ITUCKY.

VAPOR-HEATER ron ENGINES.

Tofa llwhom it mag concern:

Be it known that I, VIo'ron ADAMs, a citizen of the United States, residing at Lexington, in the county of Fayette and State of Kentucky, have invented new and useful Improvements in Vapor-Heaters for En gines, of which the following is a specification.

This invention relates to internal combustion engines and has for its object the provision of a cylinder block or cylinder head construction providing passages for the fuel extending adjacent and across the combustion chambers whereby the vaporized fuel will be thoroughly preheated before its introduction into the cylinders through the intake valves, the advantage being that this heating of the vapor increases its combustibility and thereby economizes in fuel consumption while improving the running of the engine and increasing the power derived therefrom.

An important object is the provision of a device of this character which will be simple and inexpensive in manufacture as the heating passages are formed within the cylinder block or head when the same is cast.

An additional object is the provision of a device of this character which will be .highly eflicient in operation, durable in service. and a general improvement in the art.

With the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings in which,

Figure 1 is a longitudinal vertical sectional view through an engine having my heating means associated therewith the section being taken on the line 1-1 of Fig. 2;

Fig. 2 is a horizontal sectional view on the line 22 of Fig. 1, and

Fig. 3 is a vertical cross sectional view on the line 33 of Fig. 2.

Referring more particularly to the drawings, the numeral 10 designates the cylinder casting which has the usual cylinders 11 and which includes the usual water iacket 12. The type of cylinder casting doesnot affect the present invention though the block is shown in the present instance as being of the L-head type and provided with intake valve openings 13. The numeral 14 designates the pistons connected with the usual connectj Specification of Letters Iatent. P tented Oct. 19 1920. Application filed-April e, 1920. Serial No. 371,648.

lng rods 15, and 16 designates the intake valves. The exhaust valves are not shown as not having any bearing upon the present invention.

In carrying out my invention I provide an lntake manifold 17 which is cast with the cylinder block and which has its end 18 lead ng to one side of the casting. The manifold includes branches 19 which extend 1n opposlte directions and which extend to all of the cylinders. Formed integrally with the casting and extending transversely of the cylinders are conduits 20 which lead from the branches 19 of the manifold at substantially right angles thereto and which are disposed in spaced relation to the tops of the cylinders and the intake valves 16. The intake valve openings 13 are disposed at the juncture of these conduits with the lower wall forming the combustion cham ber and the conduits 20 are then expanded n slzeto define chambersQl beneath the intake valves, it being apparent that the conduits are curved downwardly.

In the operation it will be seen that the combustible vapor entering the intake manifold must, before it reaches the intake valves, pass through the conduits 20 and as these conduits extend across the combustion chambers it is readily apparent that the vapor will be thoroughly heated before it is admitted by the valve 16 into the combustion chamber. This preheating insures that the vapor will be in proper condition for ignition so that complete combustion will take place and the running of the engine improved.

From the foregoing description and a study of the drawings it will be apparent that I have thus provided an engine construction in which the heating means is contained entirely within the cylinder casting so that likelihood of breakage or derange ment will be reduced to the minimum and wherein the heating effect is accomplished entirely by the heat generated within the engine without any necessity whatever for the emplovment of extraneous means.

While 'I have shown and described the preferred embodiment of my invention, it is of course to be understood that I reserve the right to make such changes in the form,

Having thus described may invention, I claim:

In an internal combustion engine, ,a cylinder casting having cylinders formed therein, an intake manifold formed integrally within said casting and having one endextendingbeyond one side thereof for connection with a carbureter or a vaporized fuel conduit, said manifold being branched whereby to extend to all the cylinders, conduits formed integrally with" said manifold and extending at substantially right angles thereto transversely of the cylinders, the casting being further formed with chambers adjacent the cylinders with the chambers 15 In testimony whereof I afiix my signature. 2o

VIGTOR ADAMS. 

